An extension is a new room or building which is added to an existing building or group of buildings.
2. countable noun
An extension is a new section of a road or rail line that is added to an existing road or line.
...the Jubilee Line extension.
3. countable noun
An extension is an extra period of time for which something lasts or is valid, usually as a result of official permission.
He first entered Britain on a six-month visa, and was given a further extension ofsix months. [+ of]
Synonyms: lengthening, extra time, continuation, postponement More Synonyms of extension
4. countable noun
Something that is an extensionof something else is a development of it that includes or affects more people, things, or activities.
He saw his civil rights activity as an extension of his ministry. [+ of]
That's the logical extension of my approach.
5. countable noun
An extension is a phone line that is connected to the switchboard of a company or institution, and that has its own number. The written abbreviation ext. is also used.
She can get me on extension 308.
For further information, please contact 414 3925, extension 2253.
6. countable noun
An extension is a part which is connected to a piece of equipment in order to make it reach something further away.
...a 30-foot extension cord.
Some of the best extensions are made from sections of rod tube or drainpipe.
More Synonyms of extension
extension in British English
(ɪkˈstɛnʃən)
noun
1.
the act of extending or the condition of being extended
2.
something that can be extended or that extends another object
3.
the length, range, etc, over which something is extended; extent
4.
an additional telephone set connected to the same telephone line as another set or other sets
5.
a room or rooms added to an existing building
6.
a delay, esp one agreed by all parties, in the date originally set for payment of a debt or completion of a contract
7.
the property of matter by which it occupies space; size
8.
a.
the act of straightening or extending an arm or leg
b.
its position after being straightened or extended
9. medicine
a steady pull applied to a fractured or dislocated arm or leg to restore it to its normal position
See also traction (sense 3)
10.
a.
a service by which some of the facilities of an educational establishment, library, etc, are offered to outsiders
b.
(as modifier)
a university extension course
11. conservative extension
Word origin
C14: from Late Latin extensiō a stretching out; see extend
extension in American English
(ɛkˈstɛnʃən)
noun
1.
an extending or being extended
2.
the amount or degree to which something is or can be extended; range; extent
3.
a part that forms a continuation or addition
an extension to a factory
4.
an extra period of time allowed a debtor for making payment
5.
a branch of a university for students who cannot attend the university proper
6.
an extra telephone connected to the same line as the main telephone
7.
a.
the straightening of a flexed limb
b.
traction applied to a fractured or dislocated limb so as to bring it into its normal position
8. Ballet
a.
the act or an instance of extending either leg at any angle from the body
b.
the capability of a dancer to so extend a leg, specif. at a difficult angle for a period of time
9. Business
a.
an amount on an invoice calculated by multiplying quantity by price
b.
the calculation of such an amount
10. Logic
the class of all particular objects to which a term refers; denotation
see also intension (sense 4)
11. Physics
that property of a body by which it occupies space
adjective US
12.
designating a device that can be extended or that extends something else
extension ladder, extension cord
Derived forms
extensional (exˈtensional)
adjective
Word origin
ME extensioun < L extensio < pp. of extendere: see extend
Examples of 'extension' in a sentence
extension
Halfway through the brief conversation Rebet returned and the colonel gestured towards the extension phone.
Forbes, Colin COVER STORY (2002)
Walls knocked down, rooms built, new kitchen, new bathroom, loft conversion, extension at the back.
Vanessa Jones THE KINDEST USE A KNIFE (2002)
The rear of the building had a stone extension attached to it with modern glass sliding doors at one end.
Adam, Paul A NASTY DOSE OF DEATH (2002)
Her first six months at the Globe were little more than an extension of that youthful spree.
Bill Adler and Mel Watkins WHO KILLED TIFFANY JONES? (2002)
In other languages
extension
British English: extension /ɪkˈstɛnʃən/ NOUN
An extension is a new room or building which is added to an existing building.
...the new extension to the museum.
American English: extension
Arabic: اِمْتِداد توسع
Brazilian Portuguese: extensão
Chinese: 扩充
Croatian: proširenje
Czech: přístavba
Danish: forlængelse
Dutch: uitbreiding
European Spanish: ampliación extensión
Finnish: laajennus
French: extension
German: Anbau
Greek: προέκταση
Italian: ampliamento
Japanese: 増築
Korean: 연장 늘이다
Norwegian: utvidelse
Polish: rozszerzenie
European Portuguese: extensão
Romanian: prelungire
Russian: пристройка
Latin American Spanish: ampliación
Swedish: förlängning
Thai: การขยายออก
Turkish: uzatma
Ukrainian: розширення
Vietnamese: phòng cơi nới
All related terms of 'extension'
brand extension
the practice of using a well-known brand name to promote new products or services in unrelated fields
extension cable
an extra length of cable with a plug and a connector that can be added to an electric lead
extension cord
an extra length of cable that can be added to an electric lead
extension lead
an extra length of cable with a plug and a connector that can be added to an electric lead
extension light
a light on the end of a length of cable
extension ring
a spacer element that can be fixed between the camera body and the lens to increase the distance between film and lens and allow closer focus than would be possible without it
file extension
a set of letters such as . doc added to the end of its name that identifies what type of file something is
hair extension
synthetic or human hair attached to the hair on someone's head to give the appearance of longer hair
extension courses
courses offered to outsiders by an educational establishment
extension ladder
a ladder that can be made longer by pulling out an extra section
conservative extension
a formal theory that includes among its theorems all the theorems of a given theory
National Extension College
a non-profit organization that allows people of all ages to continue their education through distance and online learning , etc
university extension courses
courses provided by universities to people who are not enrolled as regular students